op {
  graph_op_name: "Abort"
  attr {
    name: "error_msg"
    description: <<END
A string which is the message associated with the exception.
END
  }
  summary: "Raise a exception to abort the process when called."
  description: <<END
If exit_without_error is true, the process will exit normally,
otherwise it will exit with a SIGABORT signal.

Returns nothing but an exception.
END
}
